A name of a co-worker. Every co-worker has to say it the whole day.
Worker1: "Eh! Hilpert"
Worker2: "Hilpert!"
Hilpert: "eh"
THE most complex but hard to control terminal editor.
It is really really powerful!
Person1: "Hey, how do I exit Vi?"
Person2: "Just go into normal mode and then enter the quit command!"
Person1: "??"
Person2: "Just type ESC :wq"
Person1: "ahhhh! now I can use another editor"